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The Best King Mattress

Last updated on October 9, 2020

We looked at the top 8 King Mattresses and dug through the reviews from 38 of the most popular review sites including SuperComfySleep.com, Hack To Sleep, Sleep Health, Best Mattress Reviews, Mattress in USA, The Sleep Shop and more. The result is a ranking of the best King Mattresses.

Best King Mattress

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Our Picks For The Top King Mattresses

Show Contents
Our Take
Experts Included
Pros
Cons
  The Best Overall

TUFT & NEEDLE Original Adaptive Foam King Mattress

TUFT & NEEDLE

Original Adaptive Foam King Mattress

Overall Take

Pressure ReliefThis king mattress is designed with a support layer that lasts through the night, not just for the first few hours.

Experts Included
DWYM Bedroom & Bathroom Experts plus Sleep Foundation, Sleepopolis, The New York Times, Mattress Clarity, BestReviews. Along with user reviews from Amazon.
Pros
" The Tuft & Needle comes in one firmness, which is medium firm. For most individuals, this feel is likely to strike a comfortable balance between softness and support."
Cons
"Strict stomach sleepers may also find that the top layer of foam is a just a little too gentle, causing their hips to sink out of alignment with their shoulders."
  The Best Value

Zinus Green Tea Memory Foam King Mattress

Zinus

Green Tea Memory Foam King Mattress

Overall Take

Durable and SturdyInstalling this king mattress is a breeze, as you simply need to open the packaging and watch the bed unravel and inflate.

Experts Included
DWYM Bedroom & Bathroom Experts plus Sleepopolis, Sleep Foundation, Sleep Advisor, Slumber Search and 1 more. Along with user reviews from Amazon.
Pros
" The soft overall profile of the Zinus provides strict side sleepers with plenty of pressure relief in the hips and shoulders."
Cons
"Zinus currently holds an low rating with the Better Business Bureau. This rating is largely due to complaints stemming from customer service issues and failure to respond to complaints from mattress buyers."

Classic Brands Ultimate Gel Memory Foam King Mattress

Classic Brands

Ultimate Gel Memory Foam King Mattress

Overall Take

Stretch Knit Fabric Cover IncludedInside this king mattress is a cooling gel that whisks away body heat for a comfortable night's sleep.

Experts Included
DWYM Bedroom & Bathroom Experts plus BestReviews, Hands on Mattress, Sleepopolis, SuperComfySleep.com. Along with user reviews from Amazon.
Pros
" A high density foam base that provides firm underlying support and helps the mattress last longer."
Cons
"When your mattress arrives, you will have to wait for a couple of weeks before the smell is completely gone."

Casper Sleep Element King Mattress

Casper

Sleep Element King Mattress

Overall Take

Easy InstallationThis king mattress features a durable base that not only prevents sagging, but also provides support for the entire body.

Experts Included
DWYM Bedroom & Bathroom Experts plus Sleepopolis, Mattress Nerd, Mattress Clarity, Sleep, Slumber Yard, Sleep Advisor. Along with user reviews from Amazon.
Pros
" you may want to consider the Casper Element, an all-foam mattress built with coziness — and affordability — in mind."
Cons
"Heavier people who are strict back sleepers may experience some sinking"
Don't just take for granted what one reviewer says. Along with our own experts, DWYM analyzes the top expert reviews of the leading products and generates a score you can actually trust.
15

Products Considered

We identified the majority of the king mattresses available to purchase.
8

Products Analyzed

We then selected the leading and most popular products for our team to review.

View All Product Rankings

38

Expert Reviews Included

In addition to our expert reviews, we also incorporate feedback and analysis of some of the most respected sources including: SuperComfySleep.com, Hack To Sleep, Sleep Health, Best Mattress Reviews, Mattress in USA.

266,414

User Opinions Analyzed

We also incorporate user reviews from the leading retailers including Amazon, US-Mattress, Walmart.

Our experts reviewed the top 8 King Mattresses and also dug through the reviews from 38 of the most popular review sites including SuperComfySleep.com, Hack To Sleep, Sleep Health, Best Mattress Reviews, Mattress in USA, The Sleep Shop and more. The result is a ranking of the best of the best King Mattresses.

DWYM is your trusted roduct review source. Our team reviews thousands of product reviews from the trusted top experts and combines them into one easy-to-understand score. Learn more.

Look for the DWYM seal for products that are the best in their category.

The Best Overall

TUFT & NEEDLE Original Adaptive Foam King Mattress

Our Expert Score
9.1
5 expert reviews
User Summarized Score
9.0
40,709 user reviews
Our Take

You won't have to worry about feeling overheated when you go with this king mattress, as it contains a cooling gel to keep you comfortable. The mattress is constructed without any harmful chemicals and even has a CertiPUR-US certification. Sleepers will also appreciate the open-cell structure, as this creates a flexible sleep surface.

What other experts liked
The Tuft & Needle comes in one firmness, which is medium firm. For most individuals, this feel is likely to strike a comfortable balance between softness and support.
- Sleep Foundation
I think this bed could be fantastic for back sleepers! It’s highly supportive, ensuring neutral spine alignment from the shoulders all the way to the lower back.
- Sleepopolis
The Tuft & Needle Original isn’t made with memory foam, so it doesn’t hug every contour. It has a soft top but a firm underlayer, so you should feel supported yet cushioned at the same time.
- The New York Times
For an all-foam mattress, the Tuft and Needle is particularly breathable; for those who want the comfort of foam but don’t want to overheat at night, this could be an exceptional choice.
- Mattress Clarity
Almost entirely made of adaptive foam, which isolates movement so sleepers don't annoy each other.
- BestReviews
What other experts didn't like
Sleepers who like the hug of memory foam may not feel the Tuft & Needle conforms closely enough.
- Sleep Foundation
Strict stomach sleepers may also find that the top layer of foam is a just a little too gentle, causing their hips to sink out of alignment with their shoulders.
- Sleepopolis
As we’ve determined with other mattresses that cost less than $1,000, we don’t think the Original will prove durable enough for people who weigh over 200 pounds.
- The New York Times
For those mattress customers who are on the larger side, this mattress might not be quite supportive enough; heavier people should consider a firmer mattress that perhaps incorporates coils.
- Mattress Clarity
May initially be too firm for some sleepers.
- BestReviews

The Best Bang For Your Buck

Zinus Green Tea Memory Foam King Mattress

Our Expert Score
9.0
5 expert reviews
User Summarized Score
8.8
61,066 user reviews
Our Take

Aches and pains are a thing of the past when you opt for this king mattress. It's infused with green tea and activated charcoal, which not only absorb moisture, but also relieve tension. The three layers of foam are also designed to provide you with both comfort and support.

What other experts liked
The soft overall profile of the Zinus provides strict side sleepers with plenty of pressure relief in the hips and shoulders.
- Sleepopolis
People who prefer the deep body-contouring of plush memory foam
- Sleep Foundation
Very Affordable. Great Feel
- Sleep Sherpa
This mattress is priced to fit almost any budget and contains pressure-relieving memory materials that often cost hundreds more in retail stores.
- Sleep Advisor
These mattresses are good for those that need a very temporary solution and are on a strict budget.
- Slumber Search
What other experts didn't like
After you sink into that memory foam, the Zinus doesn’t have much bounceback. If you need a bouncy mattress, you may want to look for one of the Zinus hybrid mattresses.
- Sleepopolis
Zinus currently holds an low rating with the Better Business Bureau. This rating is largely due to complaints stemming from customer service issues and failure to respond to complaints from mattress buyers.
- Sleep Foundation
But if you are someone who sleeps exceptionally hot, you may want to upgrade to the company’s cooling gel addition.
- Sleep Advisor
These mattresses get good scores for comfort initially, but there are many complaints about durability and sagging issues. Due to this, some may find that their comfort degrades over time.
- Slumber Search

Overall Product Rankings

TUFT & NEEDLE Original Adaptive Foam King Mattress

1. TUFT & NEEDLE Original Adaptive Foam King Mattress

Overall Score: 9.4
Reviews Included: 7

Zinus Green Tea Memory Foam King Mattress

2. Zinus Green Tea Memory Foam King Mattress

Overall Score: 9.2
Reviews Included: 6

Classic Brands Ultimate Gel Memory Foam King Mattress

3. Classic Brands Ultimate Gel Memory Foam King Mattress

Overall Score: 8.9
Reviews Included: 7

Casper Sleep Element King Mattress

4. Casper Sleep Element King Mattress

Overall Score: 8.8
Reviews Included: 7

Ashley Chime Medium Firm Memory Foam King Mattress

5. Ashley Chime Medium Firm Memory Foam King Mattress

Overall Score: 8.7
Reviews Included: 6

Linenspa Memory Foam & Innerspring Hybrid King Mattress

6. Linenspa Memory Foam & Innerspring Hybrid King Mattress

Overall Score: 8.7
Reviews Included: 7

Vibe Gel King Memory Foam Mattress

7. Vibe Gel King Memory Foam Mattress

Overall Score: 8.6
Reviews Included: 6

Sleep Innovations Shiloh Memory Foam King Mattress

8. Sleep Innovations Shiloh Memory Foam King Mattress

Overall Score: 8.3
Reviews Included: 6

Our King Mattress Findings

TUFT & NEEDLE Original Adaptive Foam King Mattress

What We Liked: You won’t have to worry about feeling overheated when you go with this king mattress, as it contains a cooling gel to keep you comfortable. The mattress is constructed without any harmful chemicals and even has a CertiPUR-US certification. Sleepers will also appreciate the open-cell structure, as this creates a flexible sleep surface.

Zinus Green Tea Memory Foam King Mattress

What We Liked: Aches and pains are a thing of the past when you opt for this king mattress. It’s infused with green tea and activated charcoal, which not only absorb moisture, but also relieve tension. The three layers of foam are also designed to provide you with both comfort and support.

Classic Brands Ultimate Gel Memory Foam King Mattress

What We Liked: Constructed using a ventilated memory foam, this king mattress is soft and breathable. It includes a high-density base foam that works to provide relief to your pressure points, which is welcome after a long hard day at work. The foam is also naturally hypoallergenic and resistant to mold and bacteria.

Casper Sleep Element King Mattress

What We Liked: You won’t have any trouble keeping this king mattress clean. It comes with an upholstery-grade zip off cover that can be tossed right inside the washing machine. The mattress itself also wows with its two layers of breathable foam, which allow for proper airflow to keep you nice and cool.

Linenspa Memory Foam & Innerspring Hybrid King Mattress

What We Liked: The bottom of this king mattress is made using steel coils that are able to properly distribute your weight. In the center, you’ll find a thick memory foam layer for softness. The top cushion is used to add comfort and support, so you feel good when you wake up in the morning.

Our King Mattress Buying Guide

If you have an old mattress or find yourself waking up each morning with aches and pains all over, it’s time to get a new one. Your mattress should align with the kind of sleeper you are and help you get a restful night’s sleep. It should also be roomy enough for you and your partner, your spouse or even your four-legged friends, which is why king mattresses can be so nice. When you wake up in the morning, the last thing you should feel is pain.

There are a number of different types of mattresses available on the market, each with its own set of benefits. Opt for one that matches your sleep needs. Memory foam is a common option for many people because of the comfort it offers. This kind of mattress typically has several different kinds of polyfoam. The mattress conforms to your spine while you sleep to help relieve pressure on your back. It also isolates motion, so it’s a good option if your partner moves around a lot in bed.

An innerspring mattress includes layers of foam with coils in between. There are different types of coils that can be used in these mattresses, such as pocket coils, wire coils and offset coils. However, the mattress can be noisy as a result of the coils, which may run against each other when you move. These mattresses are widely available and come in different price ranges. Plus, they are a good option for people who sleep warm, as they are breathable and feel cool.

A hybrid mattress includes both memory foam and coils. These mattresses conform to your body but also have good bounce thanks to the coils. They isolate motion better than an innerspring mattress, though they can still be noisy. They are typically more costly than a memory foam or innerspring mattress. Latex mattresses are similar to memory foam ones, but they sleep cooler and are ideal for those who get very warm at night.

DWYM Fun Fact

If you’re investing in a new king mattress, it’s important to take proper care of it to extend its life. Use a king-sized waterproof mattress protector to safeguard against any spills or leaks. They also keep off sweat, dust and allergens off your mattress, and they are easy to wash. Be sure to wash your bed linens every one to two weeks. This helps to reduce the possibility of bacteria building up on your mattress. Rotate your king mattress 180 degrees a few times a year. This way, you can wear your mattress down evenly on both sides.

The King Mattress Tips and Advice

  • When you’re on the hunt for a better night’s sleep, make sure your new king mattress helps solve the problems you’re experiencing. For example, if you find you keep waking up because your partner tosses and turns a lot, then you need a mattress that isolates motion. Memory foam is a good option for this. If you find you don’t like the feeling of sinking into your mattress, then go with an innerspring one.
  • It’s also important to consider what kind of sleeper you are, as some king mattresses are better for specific types of sleepers. If you primarily sleep on your stomach or your back, then a mattress with firm support is your best choice. It will keep your spine aligned without putting too much pressure on your back, which will ensure you don’t wake up sore. If you sleep on your side, then a softer mattress is a good option. It offers comfort and relieves pressure off of your hips and shoulders. Some people are combination sleepers, sleeping in different positions throughout the night. In most cases, either a mattress with firm or soft support will work for you.
  • For many shoppers, temperature regulation is a major factor. If you sleep hot or cool, you’ll want to get a king mattress that helps you stay at just the right temperature during the night. Your temperature sometimes depends on whether you sleep deeply. Often, light sleepers sleep cool while heavy sleepers are hot. Softer mattresses don’t allow for as much airflow because you sink into them while you sleep. Firm mattresses are a good option if you are a hot sleeper. A hybrid or innerspring mattress is a good choice in this case.

About The Author

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Anam Ahmed 

Anam Ahmed is a copywriter and essayist based in Toronto. She has been writing on technology, travel, parenting, and business for over 10 years, and works with a number of high-profile organizations. She values finding the best products to make people's lives easier. Anam earned an M.A. from the University of Toronto and a B.A.H. from Queen's University. Learn more at www.anamahmed.ca.